Search found 3713 matches

by ollek
Sun Jun 23, 2019 4:36 pm
Forum: DBTC Forum
Topic: 990 trouble with 3 point
Replies: 10
Views: 262

Re: 990 trouble with 3 point

You wrote "connecting the two circuits I had previously plugged". There is not two circuits, but you have blocked the circuit from the pump to the valve chest by fitting the plugs. The hose you now have fitted acts in the same way as the loader valves, letting oil to the valve chest. The hydraulic c...
by ollek
Fri Jun 21, 2019 5:05 am
Forum: DBTC Forum
Topic: David brown 990
Replies: 1
Views: 111

Re: David brown 990

All parts must be present and assembled in the correct order and all adjustments must be made correctly for the 3-point hitch to work. First, fit all parts in the correct palace and the perform the group 3 adjustments correctly. The adjustments can be found in the following link https://dbtc.co.uk/i...
by ollek
Thu Jun 20, 2019 7:54 am
Forum: DBTC Forum
Topic: 990 trouble with 3 point
Replies: 10
Views: 262

Re: 990 trouble with 3 point

Can you please supply a picture showing the block and the plugs you are talking about. Sounds like the front loader valve has been connected in series with the tractor hydraulics, using a series connection plate on top of the double acting valves ( if the tractor has double acting valves). If this i...
by ollek
Wed Jun 19, 2019 6:26 pm
Forum: DBTC Forum
Topic: Tractor identification
Replies: 3
Views: 117

Re: Tractor identification

The serial number fits in for a Cropmaster, built from 1947 to 1953. Please have a look in the following link to a page in the club home page https://dbtc.co.uk/index.php/information/serial-numbers The build date can be in late 40:s.
by ollek
Tue Jun 18, 2019 11:31 am
Forum: DBTC Forum
Topic: 990 stuck in high range
Replies: 10
Views: 401

Re: 990 stuck in high range

The shifter mechanism needs very little lubrication to work properly The lubrication will not work properly if the oil level in the transmission is well below the minimum mark on the dipstick or the return oil from constant hydraulic oil pumping has been connected wrongly. The oil level, if between ...
by ollek
Tue Jun 18, 2019 8:47 am
Forum: DBTC Forum
Topic: Removing 885 transmission
Replies: 5
Views: 140

Re: Removing 885 transmission

Many paper gaskets in later tractors wore substituted by Loctite 504 Gasket Eliminator at the David Brown assembly line. This product was also recommended to be used is places where the loading on bolts is high. This flange seal makes the seam stronger as well as working as a sealant. The use of Loc...
by ollek
Mon Jun 17, 2019 9:44 am
Forum: DBTC Forum
Topic: 885 Altenator
Replies: 5
Views: 142

Re: 885 Altenator

If you by saying "plastic plug ", mean the electrical connector, then you have to turn the securing spring to the side before you unplug the connector by pulling it to the rear.
by ollek
Fri Jun 14, 2019 3:29 pm
Forum: DBTC Forum
Topic: 990 stuck in high range
Replies: 10
Views: 401

Re: 990 stuck in high range

Do not put the screw driver in the hole in the selector, but put a big screw driver behind the selector. Then brace the screw driver against the side of the hole in the gearbox top and give the end of the screw driver a knock with your hand. The selector will not move if you use a constant force on ...
by ollek
Fri Jun 14, 2019 8:38 am
Forum: DBTC Forum
Topic: 1690 engine substitute
Replies: 3
Views: 180

Re: 1690 engine substitute

Everything in front of the clutch housing is different. All steering pipes and hydraulic pipes are different, as are the electrical leads that fits to the engine side. I would not even think about swapping a 6-cylinder engine for a 4-cylinder.
by ollek
Thu Jun 13, 2019 9:26 am
Forum: DBTC Forum
Topic: 990 stuck in high range
Replies: 10
Views: 401

Re: 990 stuck in high range

Lets start with the basics. Is your tractor a Implematic or a Selectamatic? You can get a hint about the model by looking at the list of tractor models you will find in the following link http://dbtc.co.uk/index.php/information/tractor-range Is the gear box a 6-speed or 12-speed? Do not start the en...
by ollek
Tue Jun 11, 2019 8:06 am
Forum: DBTC Forum
Topic: Yellow 900
Replies: 11
Views: 364

Re: Yellow 900

Perhaps the following link to a page in the DBTC club information page will give some information. It tells us that the prefix letter "I" is for industrial. http://dbtc.co.uk/index.php/information/serial-numbers
by ollek
Mon Jun 10, 2019 10:32 am
Forum: DBTC Forum
Topic: Yellow 900
Replies: 11
Views: 364

Re: Yellow 900

I have never heard of a yellow 900 tractor. DB made tractors they called Yellow and Industrial but I have never seen a 900 Industrial or Yellow tractor. Please look in the following link http://www.davidbrowntractor.com/photogallery/gallery.php?category=Industrial%20Tractors The first yellow pained ...
by ollek
Sun Jun 09, 2019 1:18 pm
Forum: DBTC Forum
Topic: Steering cross shaft 880
Replies: 5
Views: 227

Re: Steering cross shaft 880

The link I sent earlier is a link to a complete workshop manual and all adjustments can be found in the manual. Just click on the second part of the manual and scroll down until you get to the steering section.
by ollek
Sat Jun 08, 2019 12:06 pm
Forum: DBTC Forum
Topic: Steering cross shaft 880
Replies: 5
Views: 227

Re: Steering cross shaft 880

I do not understand what you mean by "cross shaft" and steering shaft" but if you refer to fitting the drop arm to the drop arm shaft, then the following link will help you https://drive.google.com/drive/folders/ ... UJUbVlIXzA
by ollek
Thu Jun 06, 2019 8:04 am
Forum: DBTC Forum
Topic: 880 hydraulic problem
Replies: 9
Views: 515

Re: 880 hydraulic problem

It can be difficult to free the valves if they are really stuck. Please remember to do all adjustments correctly and in the correct order when you put everything back together. And be precise, all measurements and adjustments must be absolutely correct, or the system will not work. The following is ...